Nicolaysen
Nicolaysen is a Norwegian surname of patronymic origin, meaning “son of Nicolai.” It is formed from the given name Nicolai (a form of Nicholas) combined with the common Norwegian surname suffix -sen.
Variant spellings include Nicolaisen, Nicolayssen, Nicolayse(n), and other regional forms. The exact spelling often reflects local
The name is most prevalent in Norway, where many patronymic surnames became hereditary family names in the
In genealogical and historical records, Nicolaysen appears from the 18th century onward in Norway, reflecting its
See also: Nicolaysen-related surnames and patronymic naming in Norwegian history.